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(No Model.) 8 Sheets-Sheet 1. G. WUST-GUYER.

MACHINE FOR MAKING SCREWS, KNOBS, WASHERS, &c.. No. 459,558.

Patented Sept. 15, 1891.

ms ravens cm, mum-mum, msnmm'au, n. c.

(No Model.)

- 8Sh t s 1 1 t 2. e. WUST-GUYER. 8 Ge MACHINE FOR MAKING SCREWS, KNOBS,WASHERS, &c.

No. 459,558. Patented Sept. 15, 1591.

(No Model.) 8 Sheets-Shee't 3.-

G WUST-GUYER. MAGHINE FOR MAKING senzws, KNOBS, WASHERS, &c.

No. 459,558. 7 Patented Sept. 15, 1891.

8 Sheets-Sheet 4.

(No Motfel.)

G. WUST-GUYER.

MACHINE FOR MAKING SCREWS, KNOBS, WASHERS, 8w.

Patented Se t. 15,1891.

uukms Finns cc. PNOTO mm: \usmmrou o c (No Model.) 8 Sheets-Sheet 5.

G. WUST-GUYER. MACHINE FOR MAKING SCREWS, KNOBS, WASHERS, &c.

No. 459,558. Patented Sept. 15,1891.

NMdl. 88h t-Sht6.

( 6 G. WUsT-G YER. e6 8 MAGHINE FOR MAKING SCREWS, KNOBS, WASHERS, 850.

Patented Sept m i MN T mgfl Ina/mi: waw- 8 Sheets- Sheet 7.

G. WUST-GUYER.

MAGHINE FOR MAKING SCREWS; KNOBS, WASHERS, 55. No. 459,558. PatentedSept. 15, 1891.

8 Sheets-Sheet s.

(No Model.)

' G. WUST-GUY ER. I MAGHINE FOR MAKING SCREWS, KNOBS, WASHERS, &c. No.459,558.

Patented Sept. 15, 1891.

UNITED STATES PATENT OFFicE.

GOTTFRIED VUST-GUYER, OF ZURICH, SWVITZERLAND.

MACHINE FOR MAKING SCREWS, KNOBS, WASHERS, 80C.

SPECIFICATION forming part of Letters Patent No. 459,558, datedSeptember 15, 1891.

Application filed February 7,1891. Serial No. 380,679. (No model.)Patented in Switzerland June 30. 1890, 110. 2,555; in France July 12,1890, No. 207.247; in Germany July 13, 1890,1113. 55,439, and inAustria-Hungary October 11,1890, No.

29,540 and No. 52,269.

To all whom it may concern.-

Be it known that I, GOTTFRIED Wtisr- GUYER, a citizen of Switzerland,residing at Unterstrass-Zurich, in the canton of Zurich and Republic ofSwitzerland, have invented certain new and usefulImprovements in aMachine for the Manufacture of Screws, Knobs, VVa-shers, and the Like,(for which I have obtained a patent in Switzerland, No. 2,555, datedJune 30. 1890; in Germany, No. 55, 139, dated July 13, 1890; in France,No. 207,247, dated July 12, 1890, and in Austria- Hungary, No. 29,540and No. 52,269, dated October 11, 1890;) and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same, reference being had to the accompanying drawings,and to letters of reference marked thereon, which form a part of thisspecification.

This invention relates to that class of machines for turning in whichthe object to be operated upon is held in a rotating hollow.

shaft andthe gripping arrangement of which permits of a successivefeeding of the object which is operated upon by tools arranged in alateral position thereto.

My machine possesses specially adapted gripping and feeding arrangementsfor the objects to be operated upon, and in particular a peculiararrangement of the tools brought into operation revolverlike. Themachine works in such a manner that the feeding of the object underoperation takes place from timeto time approximately to the length ofthe piece operated upon and cut off. The most essential tool, by eachrespective operation brought laterally against the object to be operatedupon, is a tool commonly termed revolver-tool, which automaticallyperforms the different movements and the tool-head of which permits ofusing the simplest form of tools for a great variety of purposes. The

machine facilitates themanufacture of screws, fancy-turned objects, suchas acorn-shaped knobs, bolts, shot-exploders, washers, and the likearticles.

In order that my invention may be more fully understood,I have caused tobe appended hereunto three sheets of drawings, marked with letters ofreference indicatinglike parts in the various figures.

Figure 1, Sheet '1, is partlya side view and partly a vertical sectionof the machine; Fig. 2, a plan; Fig. 3, a front view, and Fig. 4 a backView, of the machine; Fig. 5, Sheet II, a cross-section on line A B ofFig. 1, Sheet 1. Fig. 6 is a vertical section through the screwcuttingspindle of the fixed tool-slide on a larger scale than-Figs. 1 to 5.Fig. 7is aplan thereof, showing the revolver-tool in section. Fig. 8 isa side View of the tool-divisions, the revolver-tool being partlyinvertical section. Fig. 9, Sheet 1, is a front view of the toolslides,showing specially the holders set opposite the revolver-tools. Fig. 10,Sheet III, is a back view of the tool-slides on line C D, Fig. 2,Sheet 1. Figs. 11 to 19 are details of the revolver-tool slides. Figs.20 to 25 are views of the two principal kinds of revolvertools. Fig. 26is a section through the spindle which holds the object under operationon a larger scale than Fig. 11. Figs. 27 and 28 are respectively a sideview and front view of the fixi g-bush in connection with the grippingarrangement. Fig. 29 is a section through the screw-dies. Figs. 30 and31v are respectively a front view and a plan' of the screw-dies.

On the main spindleof the hollow shaft (r are positioned twoloosely-revolving speedp'ulleys a and a (shown bushed in Fig. 1,) whichare driven from a common countershaft. The larger or, of the two pulleysa and the turning operation and to disengage the screw-die. The frictioncoupling or clutch a is keyed on the spindle a. and causes when movedinto the pulley a a slow forward movement, and on the automaticreversing through the coupling or clutch lever f and the moving of thecoupling a into the pulley a a quick return movement of thescrew=cutting tools a. On the spindle a is also fixed the worm b, whichby means of the worm-wheel b, (connected with the shaft 12 throughclutch b,) bevel-wheel b shaft 0, worm-gearing c and c eccentric-shaft(1, having adjustable a serve for screw-cutting and the smaller one, awhich runs in an opposite direction,.for

eccentrics d d d (1 (Z and shaft e, having an eccentric e, sets inmotion the whole of the feeding and reversing mechanism. By disengagingthe clutch b by means of its lever 17 the feed and reversing motions andthrough disengaging the clutch a by means of its lever f those of thewhole machine can be stopped instantly by hand.

The hollow spindle a is mounted and arranged to rotate in thehead-stock, and is longitudinally kept in position by means of thecollar in front and nut a at the back thereof. (See Fig. 26.) I11 thisspindle a is arranged to rotate and to be slightly slid longitudinallythe bush a, which has in front grip-jaws or a cone-chuck a In the recessor enlarged portion of the bore of the spindle a is placed over the busha" astrong spring a one end of which bears against the end of the saidbore and the other end pressing against the sleeve a of the knee-levermechanism. 7

The fixing of the cast or drawn object or rod to be operated upon takesplace by means of the spring a which, owing to its pressure on sleeve aforces the cone-chuck a, which consists of three jaws, constantlyagainst the coned seat in the spindle a. The jaws of the cone-chuck aare connected to the tube a which carries at its back end the fixedcollar a".

In an enlargement of the bore of the spindle a is placed the spring awhich with one end bears against a fixed point or support and with theother end presses on the sleeve a which is connected to the sleeve a bymeans of two knee-joints h which sleeve a bears against the fixed collara. 'On the sleeve a is placed the conical shell h 71 The kneejoints restin inclined recesses formed in the said shell in such a manner that thepressure of the inclined recesses onto the joint 72. effects acompression of the knee, which thus causes a displacement of the sleevea by the sleeve a In this position the spring a is compressed and thejaws of the cone-chuck a rest fast in their coned seat. A lever h, whichalways bears against the face if of the shell h, causes the displacementof the same, the whole of the organs a d It a a a being bound, so as torotate therewith when the parts are set in operation.

In small machines the tensioning and releasing of the spring may beeffected, for instance, by causing the lever h to act direct onto thesleeve a in lieu of being provided with the knee-lever or apower-transmitting mechanism, as described.

shell h, which forces the knee-levers h in the direction of the tube aand the sleeve a against the spring a thus compressing the latter andexerting a strong pressure on the fixed collar a".

For the purpose of feeding the objectto be operated upon, the return ofh and a is permittedthrough the lever h. The compression of the spring abeing reduced, the grip of the chuck a is also accordingly diminished.The object to be operated upon,thus liberated, is pushed forward therequired length by means of the eccentric (1 the lever 2', the rod 2'levers i ratchet-wheel i and rope-pulley i and feeding-rod 71 connectedwith the wire rope. By adjusting the rod 7? in the longitudinal slots ofthe' levers t' and 2' the speed of the object to be operated upon can beregulated. The reversing of the coupling a is effected from the shaft 61by means of the eccentrics d and d, the latter acting alternately on thesliding rod f, which is connected with the lever f and the latter withthe lever f which levers are retained in their final position by meansof the springbolts f The eccentric d the sliding rods g, the spring 9and the levers g and 9 serve for the forward and backward movement ofscrew-cuttin g spindle 9 arranged in ,the fixed tool-slide 10 which, bymeans of a key, is guided and rendered movable onlylongitudinally. Thescrew-cutting bush a, Fig. 6, is made to turn in the hollow spindle gand to be drawn back to'its original position each time after havingperformed its work by means of the light spring 9 The rotary bush a hasa coupling-nose a bearing against another nose formed on the hollowspindle g in such a manner that for a certain distance the bush a isprevented from turning in the hollow spindle 9 On the hollow spindle gis placed the lever-collar g with lock-nut, the face a of which isopposite a regulatingscrew ta The rod gis formed in two parts, which arekept apart by means of a strong spring 9',

placed between the rods 9, but which parts can be pressed toward eachother. This kind of connection has for its purpose to facilitate anelastic grip of the jaws of the screw-cuttin g die. On the rod 9 beingpushed forward the spring 9 closes until the screwdie 2 of the bush ahas gripped the object under operation. As soon as this has taken place,according to the pitch of the thread,

the bush a, as well as the hollow spindle 7 the object just operatedupon without being longitudinally displaced if no provisions were madeto bring it back from the same. This arrangement consists of a levera 5carried by a stud m, which can escape upw d and is retained in itslowest or horizontal position through the stop On the screw-die head ofthe bush u is formed an eccentric projection with an inclined and astraight surface u -in such a manner that the inclined surface on therotation of the bush during screw-cutting comes in contact with andraises the lever and the straight surface, however, after the reversingcomes into contact with the side of the lever 165, and is thereby heldin position. This causes the rotation of the bush u and the object cutto be interrupted and thus move only longitudinally in accordance withthe pitch of the thread, as is the case when screw-cutting, but backwarduntil the noses u are pushed in contact with each other and the surfacea has finally returned from the regulating-screw a to itsstarting-point.

By means of the screw a the starting moment of the cutting-die and thelength of the thread can be easily regulated. The moment at which uslips olf causes the stopping of the screw-cutting, even without thereversing between a and a having previously taken place.

The screw-die z is radially adjustable to the object to be operated uponby means of the screw '11, which is held by and guided'in the forkedpart of the movable die portion w.

On the movable tool-slide is, which is positioned crosswise to and alittle on one side of the main spindle a, is employed on a conical studZ the revolver-tool head 7'. In the back face of the revolver 'r are sixholes 1", Fig. 7, into which the spring-bolt 0 enters successively, andsix teeth internally milled out,'int0 which the spring-bolt Zsuccessively enters, Figs. 7 and S, and which serve to effect thepartial rotation of the revolver r. In the front face of the latter areformed six conical slots r Fig. 10, into which is pressed, according tothe rotation of the spindle Z, the crosspiece Z Figs. 14 to 16, formedwith conical projections and quick-thread. To the head r is fitted aplate Z which is screwed fast to the conical stud Z Fig. 8. Thecross-piecel is guided on its stud Z as well as in the longitudinal slotof the plate Z and can therefore in itself not assume a rotary motion..The lever'm is fixed on the spindle Z. The inclinednose l, which issecurely connected to the spindle Z, facilitates the return of thespringbolt 0 on the return of the lever m in its middle position m, Fig.11, by means of the lever n, movable on the stud n. In the leverposition m, as shown in Fig. '7, the spring-bolt 0 and the cross-piece lare disengaged. The spring-bolt 1 has now advanced to the next tooth,and the revolver ris thus turned onesixth ofa revolution into leverposition m The revolver-head 1', with six fixing-surfaces, serve for thereception of shaping-tools of the usual form and milling-tools,.&c. Ineach of the said surfaces slots are milled, in which tool-holderscapable of being regulated can be screwed fast. As shown in Figs. to 22,the toolis secured in the holder 19 by means of screws 10 Thetool-holder can be drawn back or pushed forward in the tool-holder box gby means of the nut 19' when the screw q is withdrawn, and thus thewhole displaced inthe longitudinal slots of the revolver-disk. If anobject has to receive a particular exact and good finish, the object tobe shaped is first roughed out by small tools, of which one or twoaresecured on one of the surfaces of the revolver'disk, and afterwardfinished,.as shown in Fig. 25, by means of a broader tool. For thebroader tools the holder shown in Figs. 23 to 25 is preferably used. Theregulating arr'angement for the same differs a little fro those forsmall tools.

In the tool-holder box q is mounted a regulating-screwp which has ashoulder p en gaging a groove in the tool-holder in such a manner thaton screwing in the regulating-screw the tool-holder moves with it, andthus can be brought in operation. The set-screwp serves to lock theregulating-screw 19 after having once been set.

In Fig. 10 are shown on the revolver-head 1 various toolsfo r instance,such as small or broad shaping-tools and a milling-tool.

Into the prism of the revolver-slide the steel plate is inserted. In thesame are the two displaced slots 3 and 8 Figs. 3, 17, and 18, milledout, engaging the noses s and s,formed at the lower end of the lever m,one of which effects the fro and the other the to motion of the lever assoon as the slide 70 has been pushed forward. The revolver-slide 70receives its motion toward the object under operation from an eccentrice, Figs. 2 and 3, and at the end of the travel required is slid back bythe eccentric-nose 6 coming into contact with the hookc fixed on theslide it, and through the spring 6 in compression, Fig. 9, which pressesthe slide k constantly against the eccentric. The advance and returnmovement of the slide 7a effects at the same time also the installationof a fresh tool by the revolver-tool head r-namely, by throwing back thelever m, provided with noses s and-s.

The slide-spindle 10 serves for the adjustment and setting of the slideis to the object under operation.

. The nut is, arranged to be put outand in gear, serves to disconnect orconnect the slide the stud 3 Figs. 6 to 10, of the fixed slide isarranged to turn the double lever g 3 the lower arm J2 of which enters acam-recess terminating below and above in nose-surfaces. The upper arm ycarries the counter-holder block. The cam-recess 3 is of such a form soas to cause the holder to move toward the center of the object inaccordance with the amount of forward movement of the turningtool. Onthe return of the slide is this lower cam-recess nose-surface raises thelever 11 until the counter-holder y falls back, which on the forwardmovement of the slide 7c, by reason of the action of the upperearn-recess nose-surface 011 the lever g raises the lever iL/ again andbrings the counter-holder simultaneously with the tool against theobject under operation.

Having now particularly described and ascertained the nature of thisinvention and in what manner the same is to be performed, I declare thatwhat I claim is 1. A tool-holder with polygonal revolverhead the sidesof which serve for the reception of turning and other tools withadjustable tool-holder, substantially as set forth.

2. A tool-holder with polygonal revolverhead the sides of which areslotted for the reception of the tools and the bore of which is providedwith ratchet-divisionscorresponding with the number of the revolver-headsides, substantially as set forth.

3 In apolygonal revolver-head the sides of which are furnished withtools, the springbolt lever 1 fixed on the central spindle, the springbolt of which acts on an internal ratchet-wheel of the revo1ver-head,thus feeding the latter internally, substantially as set forth.

4. In a polygonal revolver-head the sides of which are furnished withtools, the springbolt 0, the points of which enter a recess milled intothe back rotary face of the revolver-head, which, (for instance, asshown, by, the aid of a lever 41,) by means of an inclined surface ornose Z, fixed on the central spindle Z of the revolver-head, is drawnback and then released at a convenient moment, substantially as setforth.

5. In a polygonal revolver-head the sides of which are furnished withtools, the plate Z connected to the fixed stud F, (of the slide 1a,)which is positioned concentrically in the revolver-head and in which thecross-piece l is guided in such a manner that after the entrance of thespring-bolt 0 and on the continued rotation of the central spindlescrewed into the cross-piece Z the latter, by reason of the pressureexerted by its conical noses on the revolver, presses the latter on itsconical stud Z thereby retaining it in position, substantially as setforth.

6. A slide 70, having a fixed conical stud Z which latter carries apolygonal revolver-head r, with eccentric e, which presses the slideagainst the action of the spring a forward; and thereby the tools of therevolver-head against the object under operation, and with aneccentric-stud eiwhich withdraws the slide.

k with the revolver-tools from the object under operation, substantiallyas set forth.

7. A movable slide 70, having a fixed conical stud Z which lattercarries a polygonal revolver-head 2", central spindle Z, on which isscrewed the cross-piece Z and lever m, with noses s and s, which enterthe recesses s and s of the fixed prism for the purpose of changing therevolver-tools, substantially as set forth.

8. A movable slide 70, furnished with the cam-recess y, having a fixedconical stud Z with polygonal revolver-head a", in combination with afixed slide 10 which carries on a stud y a double lever g and y the arm9 of which carries a counterholder block which presses against theobject under operation exactly according to the advance of therevolver-tool slide through the motion of the I lever-arm 3 in thecam-recess y, substantially as set forth.

9. The toolholder 19, made adjustable by means of nuts 19' in thetool-box g, which is made adjustable parallel to the axis of the objectunder operation in slots of the polygonal tool-head, substantially asset forth.

10. The tool-holder p in the tool-box q, which in the slots of thepolygonal tool-head is made adjustable parallel to the object underoperation, with a screw 19 mounted in the tool-box q, the collar 19 ofwhich screw runs in a groove of the tool-holder and which serves for theadjustment of the tool-holders, substantially as set forth.

11. In a screw-cutting arrangement of an automatic machine for themanufacture of screws, knobs, and the like, the horizontally-positionedupward-moving lever-arm a mounted on the stud a for the purpose ofpreventing the rotation of the bush u with the object under operation onits rotary movement being reversed, substantially as set forth.

12. In a screw-cutting arrangement of an automatic machine for themanufacture of screws, knobs, and the like, the lever-arm u incombination with a screw-cutting bush mt, which is furnished with acoupling-nose it, which comes in and out of gear with the hollow spindle9 substantially as set forth.

13. In an automatic machine for the manufacture of screws, knobs, andthe like, the screw-cutting die w, which is made adjustable in the headof the bush u by means of the screw 41, mounted therein, substantiallyas set forth.

14:. In an automatic machine for the manufacture of screws, knobs, andthe like from rods, the rotating spindle a, with cone-chuck a, tube a,and spring 01?, which presses against a sleeve a which is fed and movedfrom an eccentric d by means of a lever h, substantially as set forth.

15. In an automatic machine for the manufacture of screws, knobs, andthe like, the

rotating spindle a, with cone-chuck a tube a and spring a movable sleevea kneejoint k fixed sleeve a with or without collar 0, and with aconical shell h 72/ pressing against the surface of the lever h,substantially as set forth.

16. In an automatic machine for themanufacture of screws, knobs, and thelike, the mechanism for the feeding of the object to be operated uponplaced inside the slotted gas-pipe consisting of a lever i, acted uponby an eccentric, the rod 01 lever 1 feeding arrangement z'fl'and ropewith guide-piece, which pushes the object under operation in front ofit, substantially as set forth.

17. An automatic machine for the manufacture of screws, knobs, and thelike, consisting, essentially, of the rotary spindle a,

GOTTFRIED Wl lST-GUYER.

WVitnesses:

H. RABHART, EMIL BLUM.

